JP2001151451A - Device for guiding tread for passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tread device for passenger conveyor capable of preventing the dropping of lubricating oil from a rail for rolling wheel to a tread by a simple constitution, being manufactured and maintained at low cost. SOLUTION: A carrier band 4 circulating within a main frame 1 is formed by connecting many treads 5 by a tread chain 6. A tread rail 24 is arranged along a moving path of the carrier band 4 and rolling wheels 8 of the treads 5 are guided by a horizontal guide surface 25. An oil discharging plate 26 is provided, is arranged along the read rail 24 and is arranged on a lower side of the guide surface 25 arranged within horizontal projection surfaces of the treads 5. One edge part 27 in the width direction of the oil discharging plate 26 is projected close to centers of the treads 5 from an edge part of the corresponding guide surface 25, the other edge part 28 is arranged at the outside of the horizontal projection surfaces of the treads 5 on the lower sides of the one edge part 27 and lubricating oil dropping from the guide surface 25 is discharged to the outside of the treads 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tread guide device for a passenger conveyor such as an escalator, a moving sidewalk, etc., having a plurality of treads connected endlessly and having a transport band circulating in a main frame.

[0002]

2. Description of the Related Art FIGS.
FIG. 14 is a diagram showing a conventional passenger conveyor tread device disclosed in Japanese Patent No. 57864, FIG. 14 is a side view conceptually showing an escalator, FIG. 15 is an enlarged cross-sectional view taken along line AA of FIG. 14, and FIG. 17 is an enlarged view of a portion C of FIG. 15, and FIG. 17 is an enlarged view of a portion C of FIG. In the figure, reference numeral 1 denotes a main frame of a passenger conveyor composed of an escalator, which is constituted by a truss. Reference numeral 2 denotes an upper chain wheel arranged at an upper part in the main frame 1, and reference numeral 3 denotes a lower chain gear arranged at a lower part in the main frame 1.

[0003] Reference numeral 4 denotes a transport zone, which is a tread plate 5 comprising a number of steps.
Are connected by a tread chain 6 to form an endless shape.
And is wound around the lower chainwheel 3 to form a forward path and a return path, and circulates in the main frame. 7 is a main rolling wheel provided on the tread plate 5 and having a shaft attached to the tread plate 5 connected to the tread chain 6;
Reference numeral 9 denotes a driven wheel provided on the tread plate 5 and disposed closer to the center than an end of the tread plate 5 in the width direction. Reference numeral 9 denotes a horizontal member of a truss constituting the main frame 1. A number of them are arranged apart from each other along the length of the frame 1.

[0004] Reference numeral 10 denotes a right main wheel tread rail which guides the right main wheel 7 in FIG. 15, has a groove shape in cross section, and has a rolling guide surface 11 at the center of the bottom surface width and a rolling guide surface 11. Oil grooves 12 are provided on both sides of the width, and inverted portions are formed at the upper and lower ends of the main frame 1, mounted on the cross member 9 and provided in the main frame 1 endlessly. Reference numeral 13 denotes a driven wheel tread rail for guiding the driven wheel 8, which has an L-shaped cross section and has a rolling guide surface 14 formed on one side of an L-shaped horizontally disposed side. An oil groove 16 is provided, an inverted portion is formed at the upper and lower ends of the main frame 1, mounted on the cross member 9, and provided in the main frame 1 endlessly.

[0005] The oil groove 16 side of the driven wheel tread rail 13 is arranged near the center of the tread plate 5 in the frontage direction. Reference numeral 17 denotes a left main wheel tread rail which guides the left main wheel 7 in FIG. 15, has an L-shaped cross section, is configured similarly to the sub wheel tread rail 13, and has an endless shape in the main frame 1. It is provided in.

Reference numeral 18 denotes an oil guide provided on the main frame 1 and arranged corresponding to the oil groove 16, and 19 denotes a driving device provided on the upper end of the main frame 1, and an upper chain gear by a winding transmission mechanism. The transport belt 4 is driven through the second belt 2. Reference numeral 20 denotes a handrail drive mechanism, which comprises a roller chain mechanism to which the power of the drive device 19 is transmitted, and is provided in the main frame 1 and drives a moving handrail (not shown) of the balustrade 21.

[0007] The conventional stepping device for a passenger conveyor is constructed as described above, and is provided with a stepping plate 5 which is connected by a stepping plate chain 6 to form an endless transport band 4. When the driving device 19 is biased, the main wheels 7 and the like are guided by the right main wheel tread rails 10 and the like, and the treads 5 circulate in the main frame 1. During operation of such a passenger conveyor, the tread chain 6,
The lubricating oil dropped from the handrail drive mechanism 20 flows down the horizontal member 9 and flows down to the left main wheel tread rail 17 and the driven wheel tread rail 13.

[0008] The driven wheel tread rail 13 is disposed in the horizontal projection plane of the tread surface of the tread plate 5. For this reason, the lubricating oil that has flowed down to the driven wheel tread rail 13 drops on the tread 5 that moves on the return path side of the transport belt 4 that circulates, and flows out and adheres to the tread surface of the tread 5 to deteriorate the appearance. It is expected that the passengers who ride on the treads 5 will become slippery.

In order to prevent such a problem from occurring, an oil groove 12 is provided on the right main wheel tread rail 10 and an oil groove 16 is provided on the left main wheel tread rail 17 and the driven wheel tread rail 13. Provided. Thus, the lubricating oil on the rail surface is guided to an appropriate position via the oil groove 12, the oil groove 16, and the oil guide 18 so as not to drop on the tread plate 5.

[0010]

In the conventional passenger conveyor tread device as described above, the processing of the oil groove 12 and the like of the right main wheel tread plate rail 10 is complicated and time consuming. There is a problem that it is difficult to clean the lubricating oil and the adhered foreign matter in the groove 12 and the like. Further, there is a problem that it takes time and cost to manufacture and attach a member for guiding the lubricating oil by the oil guide 18.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and provides a tread device for a passenger conveyor which prevents dripping of lubricating oil from a tread rail for rolling wheels onto a tread plate with a simple configuration. The purpose is to:

[0012]

In a stepping device for a passenger conveyor according to the present invention, a plurality of treads are connected by a tread chain to form an endless shape and form a transport band circulating in a main frame. A guide surface arranged horizontally in the cross section is formed, a tread rail provided endlessly in the main frame, arranged along the movement path of the transport belt, and guiding the rolling wheels of the tread by the guide surface, One edge portion in a vertical cross section is disposed along the length of the tread rail, is provided in a superimposed state by forming a gap below the guide surface of the tread rail arranged in the horizontal projection plane of the tread surface of the tread plate, and Are arranged to protrude closer to the center of the tread surface of the tread plate than the corresponding guide surface edge of the tread plate rail, and the other edge portion is disposed below the one edge portion and is disposed outside the horizontal projection plane of the tread surface of the tread plate. Oil drain plate That.

Further, in the stepping device for a passenger conveyor according to the present invention, there is provided an oil drain plate which is unitized to a predetermined length and which is mounted on the stepping plate rail by overlapping the longitudinal ends adjacent to each other. .

Further, in the stepping device for a passenger conveyor according to the present invention, a recess formed of a plate material, which is formed by pressing a plate material, is recessed from the front surface to the back surface, and the recess gradually becomes deeper toward the end. Oil drainage plates are provided at both ends of the longitudinal direction, and are provided on the inclined tread rails, and on the rear surface of the end of the oil drainage plate arranged on the upper side of the slope, another drainage arranged on the lower side of the slope is provided. The surface of the end of the oil plate is superposed and arranged.

Further, in the tread device for a passenger conveyor according to the present invention, the tread device is provided on an inclined tread rail, provided on the surface of the lower end of the inclination, and provided near the lower end of one edge in the vertical cross section. An oil drainage plate is provided that has a weir that bends along the lower end surface of the slant and that is provided below the one edge in the vertical cross section and that is mounted toward the other edge.

Further, in the stepping device for a passenger conveyor according to the present invention, there is provided an oil drainage plate having a surface on which a suction plate for absorbing lubricating oil is mounted.

Further, in the stepping device for a passenger conveyor according to the present invention, the U-shaped opening is formed in a tread rail which is U-shaped and whose lower end is fixed to the oil drainage plate, and which is disposed above the oil drainage plate. Fittings are provided that clamp the tread rail via mounting screws that are fitted and screwed into the U-shaped side walls, and attach an oil drain plate to the tread rail.

Further, in the footboard device for a passenger conveyor according to the present invention, the U-shaped and lower end is fixed to the oil drainage plate, and the engaging portion of the tread rail arranged above the oil drainage plate has a U-shaped. A fitting is provided for elastically deforming a fitting portion provided in the opening of the character and fitting the oil drain plate to the tread rail.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 3 show an example of an embodiment of the present invention. FIG. 1 is an enlarged view of FIG. 15 corresponding to FIG. 15 showing an essential part of FIG. 15, and FIG. FIG. 3 is an enlarged vertical sectional view of FIG. 14 and 15 except for FIGS.
A passenger conveyor is configured in the same manner as described above. In the figure, reference numeral 1 denotes a main frame of a passenger conveyor composed of an escalator, which is constituted by a truss.

Reference numeral 4 denotes a transport zone, which is a tread plate 5 comprising a number of steps.
Are connected to each other by a tread chain 6 to form an endless shape, form a forward path and a return path, and circulate in the main frame 1. 7 is a tread 5
A main wheel provided on the tread 5 and having a shaft connected to the tread chain 6, a driven wheel 8 provided on the tread 5 and disposed closer to the center than the widthwise end of the tread 5. It is.

Reference numeral 9 denotes a horizontal member of the truss constituting the main frame 1, which is provided in the main frame 1, and a number of them are arranged apart from each other along the length of the main frame 1. Reference numeral 22 denotes a main wheel tread rail which guides the main wheel 7, has an L-shaped cross section, is horizontally arranged, and has a guide surface 23 on one side of the L-shape whose tip is arranged near the center in the frontage direction of the tread plate 5. Are formed at the upper and lower ends of the main frame 1 and mounted on the horizontal member 9 so as to be provided in the main frame 1 endlessly.

Reference numeral 24 denotes a driven wheel tread rail which guides the driven wheel 8 and has an L-shape in cross section, is horizontally disposed, and has one end on one side of the L-shape disposed near the center of the tread plate 5 in the frontage direction. A guide surface 25 is formed, and inverted portions are formed at upper and lower ends of the main frame 1, mounted on the cross member 9, and provided in the main frame 1 endlessly. The edge of the guide surface 25 near the center in the frontage direction of the tread plate 5 is:
The tread 5 is arranged in the horizontal projection plane of the tread.

Reference numeral 26 denotes an oil draining plate, the length of which is arranged along the length of the driven wheel tread rail 24, and the guide surface 25 of the driven wheel tread rail 24 which is disposed within the horizontal projection plane of the tread surface of the tread plate 5.
A driven wheel tread rail 2 which is provided in a superposed state with a gap formed below, and which corresponds to one edge 27 in the vertical section.
4, the other edge 28 is disposed below the one edge 27 as shown in FIG. 1 and the other edge 28 is disposed horizontally below the edge of the tread 5. It is located outside the projection plane.

Reference numeral 29 denotes a mounting bracket, a plurality of which are arranged apart from each other along the length of the oil drain plate 26,
Is fixed to the upper surface by welding, and a leaf spring 30 is fixed at the upper end to form a fitting groove which opens downward. Then, the fitting groove is fitted to the other side of the L-shape disposed in the vertical direction of the driven wheel tread rail 24, and the plate spring 30 is elastically deformed, so that the oil draining plate 26 is moved to the driven wheel tread rail. 2
4 is mounted in a suspended state.

In the stepping device for a passenger conveyor configured as described above, a stepping plate 5 connected to a stepping chain 6 to form an endless transport band 4 is provided. When the driving device 19 is urged, the main wheels 7 and the like are guided by the main wheel tread rails 22 and the like, and the treads 5 circulate in the main frame 1. During operation of such a passenger conveyor, the tread chain 6,
The lubricating oil dropped from the handrail drive mechanism 20 flows down the horizontal member 9 to the main wheel tread rail 22 and the like.

The guide surface 2 of the driven wheel tread rail 24
The edge near the center in the frontage direction of the tread 5 in the step 5 is the tread 5
Are arranged in the horizontal projection plane of the tread. For this reason, the lubricating oil that has flowed down to the driven wheel tread rail 24 drops onto the tread 5 moving on the return path from above. However, the oil draining plate 26 is opposed to the edge of the guide surface 25 near the center in the frontage direction of the tread plate 5, and is provided so as to protrude from this edge.

As a result, the lubricating oil dropped from the edge of the guide surface 25 of the driven wheel tread rail 24 is removed by the oil draining plate 26 out of the horizontal projection plane of the tread 5. Therefore, the lubricating oil drops on the tread plate 5 moving on the return path side of the circulating transport belt 4 and adheres to the tread surface of the tread plate 5 to impair the aesthetic appearance or make the passengers on the tread plate 5 slippery. Can be prevented from occurring. Further, it is possible to save the trouble of cleaning for removing the lubricating oil dropped on the tread plate 5.

In order to prevent such a problem from occurring, the main wheel tread rail 22 and the sub wheel tread rail 2
4 does not require complicated processing of the above-described oil groove 12 or the like and installation of a member for guiding lubricating oil from the oil groove 12 to an appropriate position. Therefore, dripping of the lubricating oil from the driven wheel tread rail 24 or the like to the tread plate 5 can be prevented with a simple configuration, and problems caused by lubricating oil dripping on the tread plate 5 can be prevented with small cost.

Embodiment 2 FIG. 4 is an enlarged perspective view of a portion of an oil drainage plate showing an example of another embodiment of the present invention, and is a view corresponding to FIG. 2 described above. Except for FIG. 4, the stepping guide device of the passenger conveyor is configured in the same manner as in FIGS. In the drawings, the same reference numerals as those in FIGS. 1 to 3 denote corresponding parts, and 261 denotes an oil drainage plate unitized to a predetermined length, and longitudinal end portions adjacent to each other are overlapped with each other to form a driven wheel tread plate. Mounted on rail 24. The oil drain plate 261
The mutual polymerization sites are sealed with a suitable sealing agent if necessary.

In the passenger board tread guide device configured as described above, the oil draining plate 261 is arranged to face the edge of the guide surface 25 of the driven wheel tread rail 24. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 3 can be obtained also in the embodiment of FIG.

Also, regardless of the total length of the tread rails such as the driven wheel tread rails 24 and the like, a unitized and prepared oil drainage plate 261 can be easily provided by superimposing the longitudinal end and mounting a large number. An oil drain plate 261 can be provided. Therefore, the cost for equipping the oil drain plate 261 can be reduced. In addition, when the drainage plate is mainly provided at a location where the lubricating oil is dripped frequently, such as the installation portion of the handrail drive mechanism 20 in the main frame 1 described above, the drainage plate 261 can be easily mounted. It is.

Embodiment 3 FIG. 5 to 7 also show another example of the embodiment of the present invention. FIG. 5 is an enlarged perspective view of a portion of an oil drainage plate, which corresponds to FIG. 2 described above, and FIG. 6 is an enlarged longitudinal section of FIG. FIG. 7 is an enlarged side view of the overlapping portion of the oil drain plate of FIG. Except for FIGS. 5 to 7, the passenger board tread guide device is configured in the same manner as in FIGS. 1 to 3 described above. In the figure, the same reference numerals as those in FIGS.

Reference numeral 262 denotes an oil drainage plate made of a plate material and unitized to a predetermined length. The plate material is pressed to be depressed from the front surface to the back surface, and a concave portion 31 in which the depression gradually becomes deeper toward the end is formed. The driven wheel tread rails 24 are provided at both ends and provided at an angle. Then, on the back surface of the end of the oil drain plate 262 disposed on the upper side of the slope,
The surface of the end of another oil drainage plate 262 disposed below the slope is superposed and disposed.

In the passenger conveyor tread guide apparatus having the above-described structure, the unitized oil drain plate 262 faces the edge of the guide surface 25 of the driven wheel tread rail 24.
Is arranged. Therefore, although detailed description is omitted, the same operation as the embodiment of FIG. 4 can be obtained in the embodiments of FIGS.

The recess 31 is formed at the longitudinal end of the oil drain plate 262.
As shown in FIG. 7, an inclined surface is formed at the overlapping portion between the oil draining plates 262 via the space formed by the recess 31 as shown in FIG. 7. Therefore, by the capillary phenomenon generated due to the minute gap generated in the overlapping portion of the oil drainage plates 261 described above,
It is possible to prevent a problem caused by the lubricating oil dropped on the surface of the oil drain plate 261 wrapping around the back surface of the oil drain plate 261 and dropping on the tread plate 5 beforehand.

Embodiment 4 FIG. FIG. 8 also shows an example of another embodiment of the present invention, and is an enlarged perspective view of the oil drainage plate and the mounting bracket, and is a view corresponding to FIG. 2 described above. In addition to the configuration shown in FIG. 8, the tread guide device of the passenger conveyor is configured in the same manner as in FIGS. In the figure, the same reference numerals as those in FIG.

Numeral 32 denotes a weir formed by swelling a sealing agent such as a soft synthetic resin material.
It is provided on the surface of the lower end of the oil drain plate 261 that is inclined and is provided near the lower end of the one edge 27 as shown in FIG. And is bent toward the other edge 28.

In the passenger board tread guide apparatus configured as described above, the united oil drain plate 261 is also opposed to the edge of the guide surface 25 of the driven wheel tread rail 24.
Is arranged. Therefore, although detailed description is omitted, the same operation as the embodiment of FIG. 4 can be obtained in the embodiment of FIG.

Since the weir 32 is provided at the longitudinal lower end of the oil drain plate 261 mounted at an angle, the lubricating oil dropped on the surface of the oil drain plate 261 is formed at the longitudinal lower end of the oil drain plate 261. , To the other edge 28 side. Therefore, it is possible to prevent the problem that the lubricating oil dropped on the surface of the oil drain plate 261 goes around the back surface of the oil drain plate 261 and drops on the tread plate 5 before it occurs.

Embodiment 5 FIG. 9 also shows an example of another embodiment of the present invention, and is an enlarged perspective view of the oil drainage plate and the mounting bracket, and is a view corresponding to FIG. 2 described above. Note that, other than FIG. 9, the tread guide device of the passenger conveyor is configured in the same manner as in FIGS. 1 to 3 described above. In the drawing, the same reference numerals as those in FIG. 4 described above denote corresponding parts, and reference numeral 33 denotes a lubricating oil adsorbing plate which is made of a synthetic resin material in the form of an open-cell sponge and has a plate-like shape, and which extends downward from the surface of the oil draining plate 261 Is mounted over the other edge portion 28 bent to the right.

In the passenger board tread guide apparatus configured as described above, the united oil drain plate 261 is also opposed to the edge of the guide surface 25 of the driven wheel tread rail 24.
Is arranged. Therefore, although detailed description is omitted, the same operation as the embodiment of FIG. 4 can be obtained in the embodiment of FIG.

Further, since the suction plate 33 is provided on the surface of the oil discharge plate 261, the lubricating oil dropped on the surface of the oil discharge plate 261 is adsorbed by the suction plate 33. As a result, the lubricating oil dropped on the surface of the oil discharge plate 261 wraps around the back surface of the oil discharge plate 261 and
It is possible to prevent a problem caused by dripping on the tread plate 5 beforehand. Further, by replacing the suction plate 33 with a new one at the time of maintenance and inspection of the passenger conveyor, it is possible to reduce the amount of lubricating oil dropped on an oil pan (not shown) provided on the inner bottom surface of the main frame 1. Therefore, the cleaning operation of the inner bottom surface of the main frame 1 can be facilitated.

Embodiment 6 FIG. FIGS. 10 and 11 also show an example of another embodiment of the present invention. FIG. 10 is an enlarged perspective view of a portion of an oil drainage plate, which corresponds to FIG. 2 described above, and FIG. 11 is an enlarged front view of FIG. FIG. In addition to FIGS. 10 and 11, the stepping guide device for the passenger conveyor is the same as that shown in FIGS.
It is configured similarly to. In the figure, the same reference numerals as those in FIGS.

Reference numeral 34 denotes a driven wheel tread rail which has a U-shaped cross section and guides the driven wheel 8, and 35 denotes a U-shaped mounting bracket which is separated from each other along the length of the oil draining plate 26 by a plurality. The lower side is fixed to the upper surface of the oil drainage plate 26 by welding, and the U-shaped opening is arranged to be fitted to the driven wheel tread rail 34. Reference numeral 36 denotes a non-slip piece which is fixed to the inner surface of the side wall of the mounting bracket 35 on the one edge 27 side of the oil draining plate 26. Reference numeral 37 denotes a mounting screw made of a bolt.
6 is screwed into the side wall of the mounting bracket 35 on the side of the other edge 28 from the outside to press the outer surface of the driven wheel tread rail 34.

Also in the stepping guide device for a passenger conveyor configured as described above, the oil draining plate 26 is disposed below the driven wheel stepping plate rail 34. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 3 can be obtained in the embodiment of FIGS.

In the embodiment shown in FIGS. 10 and 11, the oil drainage plate 26 is mounted via a mounting bracket 35 which is arranged outside the driven wheel tread rail 34 in a fitted state.
Therefore, even if the vertical gap between the driven wheel tread rail 34 and the oil drain plate 26 is small, the oil drain plate 2
6 can be equipped.

Embodiment 7 FIG. FIGS. 12 and 13 also show an example of another embodiment of the present invention. FIG. 12 is an enlarged perspective view of a portion of an oil drainage plate, which corresponds to FIG. 2 described above, and FIG. 13 is an enlarged front view of FIG. FIG. 12 and 13, the passenger board tread guide device is the same as that shown in FIGS.
It is configured similarly to. In the figure, the same reference numerals as those in FIGS.

Reference numeral 38 denotes a driven wheel tread rail which has a U-shaped cross section and guides the driven wheel 8. The U-shaped side walls extend downwardly and are bent inwardly to form voids therebetween. A locking portion 39 including a bent portion is provided. 40
Is a U-shaped mounting bracket, a plurality of which are arranged apart from each other along the length of the oil drainage plate 26, the lower side is fixed to the upper surface of the oil drainage plate 26 by welding, and the U-shaped openings are respectively formed. The fitting portion 41 is configured to be bent outward.

In the passenger board tread guide apparatus having the above-described structure, the oil drainage plate 26 is disposed below the driven wheel tread rail 38. Then, the fitting portion 41 side of the mounting bracket 40 is elastically deformed so as to be sandwiched, and is inserted between the locking portions 39 of the driven wheel tread rail 38 so as to be inserted into the locking portions 39 as shown in FIG. The oil discharge plate 26 is mounted on the driven wheel tread rail 38 by fitting the fitting portion 41. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 3 can be obtained in the embodiment of FIGS.

In the embodiment shown in FIGS. 12 and 13, the oil draining plate 26 is mounted via a mounting bracket 40 disposed below the driven wheel tread rail 38. For this reason,
Even when the vertical gap between the driven wheel tread rail 38 and the oil drain plate 26 is small, the oil drain plate 26 can be easily installed.

[0051]

As described above, according to the present invention, a large number of treads are connected to each other by a tread chain to form an endless shape, and the treads form a transport band that circulates and moves within the main frame. A guide surface is formed, a tread plate rail provided endlessly in the main frame, arranged along the movement path of the transport belt, and guiding the rolling wheels of the tread plate by the guide surface, and the length is along the length of the tread plate rail. The guide of the tread rail which is arranged and provided in an overlapped state by forming a gap below the guide surface of the tread rail arranged within the horizontal projection plane of the tread surface of the tread plate, and one edge in the vertical cross section corresponds to the guide An oil drain plate that is disposed protruding closer to the center of the tread surface of the tread than the surface edge, and the other edge is disposed below the one edge and is disposed outside the horizontal projection plane of the tread of the tread. It is provided.

Thus, the lubricating oil dropped from the edge of the guide surface of the tread rail is removed to the outside of the horizontal projection surface of the tread tread by the oil drainage plate. For this reason, lubricating oil is dripped on the treads moving on the return side of the circulating transport belt and adheres to the tread surface of the treads, resulting in impaired aesthetic appearance and a problem that passengers riding on the treads become slippery. This can be prevented beforehand by a simple device configuration, which has the effect of reducing manufacturing costs and maintenance costs.

Further, as described above, the present invention is provided with an oil drainage plate which is unitized to a predetermined length and which is provided on a tread rail by overlapping longitudinal ends adjacent to each other. .

As a result, the lubricating oil dropped from the edge of the guide surface of the tread rail is removed outside the horizontal projection plane of the tread tread by the oil drainage plate. For this reason, lubricating oil is dripped on the tread that moves on the return side of the circulating transport belt, and adheres to the tread surface of the tread, causing a deterioration in aesthetic appearance and a problem that passengers on the tread become slippery. This can be prevented beforehand by a simple device configuration, which has the effect of reducing manufacturing costs and maintenance costs. Also, regardless of the overall length of the tread rail, the unitized and prepared oil drainage plate can be easily mounted by superimposing the longitudinal ends on each other so that the oil drainage plate can be installed. This has the effect of reducing costs.

Further, as described above, the present invention comprises a plate made of a plate material, which is formed by pressing a plate material, and which is recessed from the front surface to the back surface, and the recess gradually deepens toward the end. Are provided with respective oil drainage plates,
A device in which the surface of the end of another oil drain plate located below the slope is superposed on the rear surface of the edge of the oil drain plate that is installed on the inclined tread rail and that is located above the slope. It is.

Thus, the lubricating oil dropped from the edge of the guide surface of the tread rail is removed from the horizontal projection plane of the tread tread by the oil drainage plate. For this reason, lubricating oil is dripped on the treads moving on the return side of the circulating transport belt and adheres to the tread surface of the treads, resulting in impaired aesthetic appearance and a problem that passengers riding on the treads become slippery. This can be prevented beforehand by a simple device configuration, which has the effect of reducing manufacturing costs and maintenance costs. In addition, since the inclined surface having a void is formed at the overlap portion between the oil drain plates due to the recesses of the oil drain plate, fine lubricating oil dropped on the surface of the oil drain plate is generated at the overlap portion between the oil drain plates. Due to the capillary phenomenon that occurs due to the gap, there is an effect of preventing the occurrence of a problem caused by wrapping around the back surface of the oil drain plate and dropping on the tread plate.

Further, as described above, the present invention is provided on the inclined tread rail and is provided on the surface of the lower end of the slope, and is provided near the lower end of one edge in the vertical cross section. And an oil drain plate having a weir provided toward the other edge located below one edge in the vertical cross section.

As a result, the lubricating oil dropped from the edge of the guide surface of the tread rail is removed from the horizontal projection plane of the tread tread surface by the oil drainage plate. For this reason, lubricating oil is dripped on the treads moving on the return side of the circulating transport belt and adheres to the tread surface of the treads, resulting in impaired aesthetic appearance and a problem that passengers riding on the treads become slippery. This can be prevented beforehand by a simple device configuration, which has the effect of reducing manufacturing costs and maintenance costs. In addition, since a weir is provided on the surface of the lower end of the slope, the lubricating oil dropped on the surface of the oil discharge plate is guided to the other edge portion at the lower longitudinal end of the oil discharge plate. Therefore, the lubricating oil that has dropped on the surface of the oil drain plate wraps around the back surface of the oil drain plate and has the effect of preventing the occurrence of problems caused by dropping on the tread.

Further, as described above, the present invention is provided with an oil drain plate having a suction plate for adsorbing lubricating oil mounted on its surface.

As a result, the lubricating oil dropped from the edge of the guide surface of the tread rail is removed from the horizontal projection plane of the tread tread by the oil drainage plate. For this reason, lubricating oil is dripped on the treads moving on the return side of the circulating transport belt and adheres to the tread surface of the treads, resulting in impaired aesthetic appearance and a problem that passengers riding on the treads become slippery. This can be prevented beforehand by a simple device configuration, which has the effect of reducing manufacturing costs and maintenance costs. Further, the lubricating oil dropped is adsorbed by the adsorbing plate on the surface of the oil draining plate. Therefore, the lubricating oil dropped on the surface of the oil draining plate circumvents the back surface of the oil draining plate and has an effect of preventing the occurrence of a problem caused by dropping on the tread plate.
In addition, by replacing the suction plate with a new one in a timely manner, it is possible to reduce the amount of lubricating oil dripped on the oil pan on the inner bottom surface of the main frame, so that there is an effect of facilitating the cleaning operation of the inner bottom surface of the main frame.

Further, as described above, the present invention
The U-shaped opening is fitted to a tread rail arranged above the oil drain plate, and the U-shaped opening is fitted to the tread plate rail disposed above the oil drain plate. A mounting bracket is provided to clamp the rail and attach an oil drain plate to the tread rail.

As a result, the lubricating oil dropped from the edge of the guide surface of the tread rail is removed by the oil draining plate out of the horizontal projection plane of the tread tread surface. For this reason, lubricating oil is dripped on the treads moving on the return side of the circulating transport belt and adheres to the tread surface of the treads, resulting in impaired aesthetic appearance and a problem that passengers riding on the treads become slippery. This can be prevented beforehand by a simple device configuration, which has the effect of reducing manufacturing costs and maintenance costs. In addition, since the mounting bracket is arranged in the fitted state outside the tread rail, there is an effect of facilitating the mounting of the oil drain plate when the vertical gap between the tread rail and the oil drain plate is small.

Further, as described above, the present invention
It is shaped like a letter, and the lower end is fixed to the oil drain plate, and the fitting portion provided at the U-shaped opening is elastically deformed and fitted to the locking portion of the tread rail arranged above the oil drain plate. In addition, a mounting bracket for mounting an oil drainage plate is provided on the tread rail.

As a result, the lubricating oil dropped from the edge of the guide surface of the tread rail is removed from the horizontal projection plane of the tread tread by the oil drainage plate. For this reason, lubricating oil is dripped on the treads moving on the return side of the circulating transport belt and adheres to the tread surface of the treads, resulting in impaired aesthetic appearance and a problem that passengers riding on the treads become slippery. This can be prevented beforehand by a simple device configuration, which has the effect of reducing manufacturing costs and maintenance costs. Further, since the fitting portion of the mounting bracket is fitted to the locking portion of the tread rail, there is an effect that the oil drain plate can be easily mounted when the vertical gap between the tread rail and the oil drain plate is small.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention, and is an enlarged view of a main part of FIG.

FIG. 2 is an enlarged perspective view of a location of an oil drain plate in FIG. 1;

FIG. 3 is an enlarged vertical sectional view of FIG. 2;

FIG. 4 is a view showing a second embodiment of the present invention, and is a view corresponding to FIG. 2 described above.

FIG. 5 is a view showing a third embodiment of the present invention, and is an enlarged perspective view of a portion of an oil discharge plate, which is equivalent to FIG. 2 described above.

FIG. 6 is an enlarged vertical sectional view of FIG.

FIG. 7 is an enlarged side view of the overlapping portion of the oil drain plate of FIG.

FIG. 8 is a view showing a fourth embodiment of the present invention, and is an enlarged perspective view of an oil drainage plate and a mounting bracket, and is a view corresponding to FIG. 2 described above.

FIG. 9 is a view showing a fifth embodiment of the present invention, and is an enlarged perspective view of an oil drainage plate and a mounting bracket, and is a view corresponding to FIG. 2 described above.

FIG. 10 is a view showing a sixth embodiment of the present invention, and is an enlarged perspective view of a location of an oil discharge plate, and is a view corresponding to FIG. 2 described above.

FIG. 11 is an enlarged front view of FIG. 10;

FIG. 12 is a view showing a seventh embodiment of the present invention, and is an enlarged perspective view of a location of an oil discharge plate, and is a view corresponding to FIG. 2 described above.

FIG. 13 is an enlarged front view of FIG. 12;

FIG. 14 is a side view conceptually showing an escalator, showing a conventional tread device for a passenger conveyor.

FIG. 15 is an enlarged cross-sectional view taken along line AA of FIG. 14;

FIG. 16 is an enlarged view of a portion B in FIG.

FIG. 17 is an enlarged view of a portion C in FIG. 15;

[Explanation of symbols]

Reference Signs List 1 main frame, 4 transport belt, 5 treads, 6 tread chain, 7 main rolling wheel (rolling wheel), 8 driven wheel (rolling wheel), 22 main rolling wheel tread rail (tread plate rail), 23 guide surface, 24 sub wheels Roller tread rail (tread rail), 25 guideway, 26 oil drain plate,
261 oil drain plate, 262 oil drain plate, 27 one edge, 28
Other edge, 31 recess, 32 weir, 33 suction plate, 34
Driven wheel tread rail (tread rail), 35 mounting bracket,
37 mounting screws, 38 driven wheel tread rails (tread rails), 39 locking parts, 40 mounting brackets, 41 fitting parts.

Claims (7)

[Claims] 1. A tread plate having a large number connected by a tread chain to form an endless shape and forming a transport band circulating in a main frame, and a guide surface horizontally arranged in a vertical cross section is formed. A tread plate rail provided endlessly in a frame and arranged along the movement path of the conveyance band to guide the rolling wheels of the tread plate by the guide surface, and the length is arranged along the length of the tread plate rail, An air gap is formed under the guide surface of the tread rail arranged in the horizontal projection plane of the tread surface of the tread plate to form an air gap, and a guide surface of the tread rail corresponding to one edge in a vertical cross section is provided. A passenger disposed so as to protrude closer to the center of the tread surface than the edge portion, and the other edge portion is disposed below the one edge portion and an oil drainage plate disposed outside the horizontal projection plane of the tread surface; Conveyor tread guide device. 2. The tread guide device for a passenger conveyor according to claim 1, wherein the oil drain plate is unitized to a predetermined length, and the longitudinal ends adjacent to each other are overlapped with each other and mounted on the tread rail. . 3. The oil drain plate is made of a plate material, and is formed by pressing the plate material so as to be depressed from the front surface to the back surface. Each of them is provided on an inclined tread rail, and is provided on the back surface of the end of the oil drainage plate disposed on the upper side of the inclination, and on the surface of the end of another oil discharge plate disposed on the lower side of the inclination. 3. The tread guide device for a passenger conveyor according to claim 2, wherein the treads are superposed. 4. A drain plate is provided on an inclined tread rail, provided on a surface of a lower end portion of the slope, and provided near a lower end portion of one edge portion in a vertical cross section and along a lower end surface of the slope. 3. The tread guide device for a passenger conveyor according to claim 2, wherein a weir is provided to bend toward the other edge portion located below the one edge portion in the vertical cross section. 5. The stepping guide device for a passenger conveyor according to claim 2, wherein the oil draining plate has a suction plate for adsorbing lubricating oil mounted on a surface thereof. 6. A U-shaped lower end is fixed to an oil drainage plate, and the U-shaped rail is disposed on a tread rail disposed above the oil drainage plate.
The U-shaped opening is fitted into the U-shaped side wall, and the mounting plate is provided with a mounting bracket that clamps the tread plate rail via a mounting screw screwed into the U-shaped side wall and mounts the oil drain plate on the tread plate rail. The tread guide device for a passenger conveyor according to any one of claims 1 to 5. 7. A fitting portion provided in an opening of the U-shape with a U-shaped lower end fixed to an oil drainage plate and a locking portion of a tread rail arranged above the oil drainage plate. 6. A tread guide for a passenger conveyor according to claim 1, further comprising an attachment fitting which is elastically deformed and is fitted with said oil drainage plate on said tread rail. apparatus.